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¡¶±±·½Ô°ÒÕ¡·[ISSN:1001-0009/CN:23-1247/S]

Issue:

2016Äê03

Page:

9-12

Research Field:

Publishing date:

Info

Title:

Allelopathic Effect of Aqueous Extract of ª«Oxalis corniculataª« on Seed Germination and ª¤Seedling Growth of ª«Brassica junceaª« var.ª«tumidaª«

Author(s):

ZHOU Xianrong1; 2; ZHOU Li1; YANG Miao1; FAN Nanqiu1; NING Chuanxiu1

(1.College of Life Science and Technology£¬Yangtze Normal University£¬Chongqing 408100£»2.Research Center for Development and Utility of Unique Resources in the Wulingshan Region£¬Chongqing 408100)

Keywords:

Oxalis corniculata; aqueous extract; ª«Brassica junceaª« var.ª«tumida; allelopathic effect

PACS:

-

DOI:

10.11937/bfyy.201603003

Abstract:

Farmland weeds of ª«Oxalis corniculata ª«wereª« ª«usedª« ª«asª« ª«the donor plant which could commonly be found at the area planting ª«Brassica junceaª« var.ª«tumidaª«£¬three cultivars of ª«B.junceaª« var.ª«tumidaª« including ¡®Yong¡¯an Xiaoye¡¯£¬¡®Fuza No.2¡¯ and ¡®Fuza No.5¡¯ as receiver plant£¬the germination rate£¬root length£¬stem length and fresh weight of three cultivars of ª«B.junceaª« var.ª«tumidaª« seeds treated with different concentration of ª«O.corniculataª« aqueous extract were determined by indoors using a bioassay method to study the allelopathic effect of ª«O.corniculataª« on ª«B.junceaª« var.ª«tumidaª«.The results showed that seeds germination and seedling growth of the three tested cultivars of ª«B.junceaª« var.ª«tumidaª« were significantly affected by the aqueous extract of ª«O.corniculataª« with different concentration.The growth and development ofª« B.junceaª« var.ª«tumidaª« were significantly inhibited by high concentration treatments£¬and the inhibition increased with concentrations of aqueous extract.The sensitivity of ª«O.corniculataª« aqueous extract was different among three tested cultivars and were in the order of ¡®Fuza No.5¡¯£¬¡®Fuza No.2¡¯ and ¡®Yongan Xiaoye¡¯.This study gave scientific basis for selecting the appropriate cultivars and cultivating weed-resistant varieties ofª« B.junceaª« var.ª«tumidaª« in ª«O.corniculataª« invasion areas.ª¤

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Last Update: 2016-04-11